Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kazushi Uno0
Kouichi Tezuka0
Hiroyasu Yoshikawa0
Date of Patent
March 11, 2008
0Patent Application Number
112119100
Date Filed
August 25, 2005
0Patent Primary Examiner
Patent abstract
A hologram recording medium includes a hologram recording layer and a transparent substrate layer stacked on the hologram recording layer. The recording layer records an interference pattern of a recording beam and a reference beam. The transparent substrate layer has an inner surface facing the hologram recording layer, and this surface is formed with trace zones for guiding the recording beam and the reference beam in a prescribed guide direction. The trace zones have a higher reflectance than that of the remaining area in the inner surface of the transparent substrate layer.
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